Oncidium constrictum

A cool-growing Andean Oncidium, formerly Odontoglossum constrictum, from Colombia and northern Venezuela at about 1800–2300 m. It produces branched sprays of small yellow flowers barred with chestnut brown. Grow it like a cool odontoglossum: bright shade, cool nights, constant humidity and good airflow.

At home, aim for

Day Cool-growingTargets in Plantistry

Night Close to the dayTargets in Plantistry

Humidity Humid airBand in Plantistry

Light Bright, filtered lightDLI and PPFD in Plantistry

No rest periodGrows on trees (epiphyte)

Where it grows wild

An epiphyte in primary montane cloud forest in the Andes of Colombia and the Venezuelan coastal range and Andes, such as the Colonia Tovar area of Aragua and the mountains near Boconó.

Recorded at about 1800–2300 m; dated collections come from 2020–2300 m.

ColombiaVenezuelaEcuador

🔒 Growing it like that

The wild conditions above, turned into targets for a shelf, a tent or a greenhouse. The full profile has:

✓ Day and night temperature targets, and the limits it tolerates

✓ Humidity band, and how to hold it

✓ Light as DLI and PPFD for a grow light

✓ Wet and dry seasons, and whether to rest it

✓ Substrate and airflow

✓ A step-by-step setup to grow it like the wild

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Profiles are drafts built from measured range and climate and from published sources; each section carries its own confidence in the app. Photo from Wikimedia Commons, used under its CC BY-SA 3.0 licence, unmodified.